SELF-CLEANING BURNER COVER, ESPECIALLY FOR HOUSEHOLD APPLIANCES

摘要

The present burner cover is provided on its top surface with a sheet metal cover layer which is either flanged or crimped around the edge of the cover or the cover has a recess in its top to receive the sheet metal layer, whereby the edge of the cover is preferably upset inwardly to hold the layer in position. The layer is made of a material having an expansion coefficient and heat conductivity larger than the cover itself, whereby an air space is formed between the cover layer during heating due to the bulging of the cover layer which will contract again when the burner is shut off to facilitate the removal of food spills.